4 component system: The ATP-binding Cassette (ABC) Superfamily
| P0A627 | Phosphate transport system permease protein PstA 2 |
|---|---|
| P95302 | Phosphate import ATP-binding protein PstB 2 |
| P0A630 | Phosphate transport system permease protein PstC 2 |
| O05870 | Phosphate-binding protein PstS 2 |